1. Department of Rheumatology, Hospital Virgen de la Salud, Complejo Hospitalario Universitario de Toledo, Toledo, Spain
2. Instituto de Salud Musculoesquelética (Inmusc), Madrid, Spain
3. Department of Rheumatology, Infanta Sofía University Hospital, San Sebastián de los Reyes, and Biomedical Science and Health Faculty, Universidad Europea, Madrid, Spain